Death Echo
From Super-wiki
According to Sam and Dean in 3.13 Ghostfacers, a death echo is a type of trapped ghost. The spirit is stuck reenacting its death over and over in a loop. Sometimes the spirit can be shocked into moving on, particularly by someone with whom the deceased has an emotional connection.
In 3.13 Ghostfacers, Corbett becomes a death echo, and is snapped out of it by Ed Zeddmore on whom he had a crush, when Ed tells him he loves him.
